Category: Extremes affecting Spain

Heat wave occuring from August 25 2025 to September 02 2025 at 37.5°N 359.0°E

Download data: JSON

Event type: Heat wave

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Spain

Duration: 9 days

Time span: August 25 2025 to September 02 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.7 °C
  • Mean temperature: 27.1 °C
  • Maximum temperature anomaly: 4.0 °C
  • Maximum temperature: 30.5 °C

Event center: 37.5°N 359.0°E

Area affected: 51214 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2025-Aug-25_to_2025-Sep-02_359.0_37.5

Heat wave occuring from August 24 2025 to August 28 2025 at 37.0°N 4.0°E

Download data: JSON

Event type: Heat wave

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Algeria
  • Spain

Duration: 5 days

Time span: August 24 2025 to August 28 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 3.4 °C
  • Mean temperature: 29.8 °C
  • Maximum temperature anomaly: 7.3 °C
  • Maximum temperature: 35.3 °C

Event center: 37.0°N 4.0°E

Area affected: 114067 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2025-Aug-24_to_2025-Aug-28_4.0_37.0

Heat wave occuring from May 13 2025 to May 23 2025 at 37.5°N 359.5°E

Download data: JSON

Event type: Heat wave

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Spain

Duration: 11 days

Time span: May 13 2025 to May 23 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.8 °C
  • Mean temperature: 19.8 °C
  • Maximum temperature anomaly: 3.7 °C
  • Maximum temperature: 22.7 °C

Event center: 38.0°N 0.0°E

Area affected: 356700 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2025-May-13_to_2025-May-23_359.5_37.5

Heat wave occuring from April 22 2025 to April 28 2025 at 35.5°N 355.5°E

Download data: JSON

Event type: Heat wave

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Algeria
  • Morocco
  • Spain

Duration: 7 days

Time span: April 22 2025 to April 28 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 2.1 °C
  • Mean temperature: 18.0 °C
  • Maximum temperature anomaly: 5.9 °C
  • Maximum temperature: 21.4 °C

Event center: 35.5°N 355.5°E

Area affected: 175178 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2025-Apr-22_to_2025-Apr-28_355.5_35.5

Heat wave occuring from April 17 2025 to April 20 2025 at 39.0°N 3.0°E

Download data: JSON

Event type: Heat wave

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Spain

Duration: 4 days

Time span: April 17 2025 to April 20 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.6 °C
  • Mean temperature: 17.0 °C
  • Maximum temperature anomaly: 2.4 °C
  • Maximum temperature: 17.8 °C

Event center: 39.0°N 3.0°E

Area affected: 103736 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2025-Apr-17_to_2025-Apr-20_3.0_39.0

Heat wave occuring from March 30 2025 to April 15 2025 at 24.0°N 344.0°E

Download data: JSON

Event type: Heat wave

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Morocco
  • Portugal
  • Spain

Duration: 17 days

Time span: March 30 2025 to April 15 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.3 °C
  • Mean temperature: 19.6 °C
  • Maximum temperature anomaly: 3.4 °C
  • Maximum temperature: 22.1 °C

Event center: 24.0°N 344.0°E

Area affected: 1261790 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2025-Mar-30_to_2025-Apr-15_344.0_24.0

Heat wave occuring from March 28 2025 to April 01 2025 at 30.5°N 347.5°E

Download data: JSON

Event type: Heat wave

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Morocco
  • Spain

Duration: 5 days

Time span: March 28 2025 to April 01 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.8 °C
  • Mean temperature: 18.5 °C
  • Maximum temperature anomaly: 9.2 °C
  • Maximum temperature: 26.8 °C

Event center: 30.5°N 347.5°E

Area affected: 482442 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2025-Mar-28_to_2025-Apr-01_347.5_30.5

Heat wave occuring from March 18 2025 to March 24 2025 at 51.0°N 6.0°E

Download data: JSON

Event type: Heat wave

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Belgium
  • Denmark
  • France
  • Germany
  • Netherlands
  • Spain
  • United Kingdom

Duration: 7 days

Time span: March 18 2025 to March 24 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 4.9 °C
  • Mean temperature: 11.0 °C
  • Maximum temperature anomaly: 8.9 °C
  • Maximum temperature: 15.4 °C

Event center: 51.0°N 6.0°E

Area affected: 1098801 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2025-Mar-18_to_2025-Mar-24_6.0_51.0

Cold spell occuring from March 12 2025 to March 18 2025 at 44.5°N 359.5°E

Download data: JSON

Event type: Cold spell

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Andorra
  • Belgium
  • France
  • Portugal
  • Spain
  • United Kingdom

Duration: 7 days

Time span: March 12 2025 to March 18 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -3.7 °C
  • Mean temperature: 6.3 °C
  • Minimum temperature anomaly: -7.8 °C
  • Minimum temperature: -1.6 °C

Event center: 44.5°N 359.5°E

Area affected: 1142813 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Cold_spell_2025-Mar-12_to_2025-Mar-18_359.5_44.5

Heat wave occuring from March 10 2025 to March 13 2025 at 28.5°N 346.5°E

Download data: JSON

Event type: Heat wave

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Portugal
  • Spain

Duration: 4 days

Time span: March 10 2025 to March 13 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.5 °C
  • Mean temperature: 18.8 °C
  • Maximum temperature anomaly: 2.2 °C
  • Maximum temperature: 19.7 °C

Event center: 28.5°N 346.5°E

Area affected: 134142 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2025-Mar-10_to_2025-Mar-13_346.5_28.5